otherworldly

1. Of, relating to, or characteristic of another world, especially a mystical or transcendental world: "The effect was dreamy, otherworldy" (Gioia Diliberto).
2. Devoted to the world of the mind; concerned with intellectual or imaginative things.
3. Concerned with an afterlife, especially when inattentive to the present.

adjective

Of or concerned with the spirit rather than the body or material things: numinous, spiritual, unworldly. See body/spirit.

The adjective has one meaning:

Meaning #1: existing outside of or not in accordance with nature
  Synonyms: nonnatural, preternatural, transcendental